A cleaning device for a mining machine

Abstract

The utility model provides a kind of cleaning device for mine machinery, relate to mine cleaning technical field.A kind of cleaning device for mine machinery, including the frame with gyro wheel, central processing unit is installed in frame and the dry ice cleaning machine electrically connected with central processing unit, dry ice cleaning machine includes the cleaning pipe and dry ice spray gun communicated in turn, the frame is equipped with lifting shell, lifting shell slidingly is equipped with the transverse frame that can be lifted along gravity direction, transverse frame is slidably equipped with the cleaning seat for fixing the above-mentioned dry ice spray gun along the head-tail direction of frame.The cleaning device adopts dry ice cleaning machine to clean the precision parts of coal mine instruments, realizes the cleaning of multiple angles, avoids personnel to climb up and down, on the basis of not disassembling equipment, the precision position needing cleaning is cleaned, reduces the damage, rust etc. caused by cleaning, the problem caused by water cleaning, high quality is completed the cleaning of mine instrument.

Description

Technical Field

[0001] This utility model relates to the field of mine cleaning technology, and more specifically, to a cleaning device for mining machinery. Background Technology

[0002] During coal mining, drilling, blasting, coal extraction, and transportation all generate significant amounts of dust. Taking a coal face as an example, the breaking of the coal seam by the coal mining machine produces substantial amounts of coal dust, while rock dust is also generated from the roof and floor due to mining activity. This dust not only pollutes the air environment at the working face but also severely impacts the normal operation of mining machinery. Dust enters various components of the machinery, such as engines and electrical components, accelerating wear and corrosion and reducing the machinery's lifespan.

[0003] Currently, most cleaning of mining machinery is done with water. While this method can quickly remove dust, it inevitably leaves some water residue on the equipment, causing wear and tear. A mining machinery repair underframe cleaning device (application number CN202023031711.5) incorporates a drying unit, extending the service life of the cleaned equipment. However, with the rapid development of coal mining machinery and its increasing automation, precision components such as engines and electrical parts constitute a large proportion of the equipment. Water entering during cleaning can easily cause damage. Coal mines generate significant amounts of dust, which easily accumulates on machinery. Furthermore, most mining machinery is large in size. Current cleaning machines for motors and electrical components require manual cleaning, and for large equipment, climbing or using ladders is sometimes necessary, posing a significant safety risk. Direct disassembly for professional cleaning is costly and impacts production efficiency. Utility Model Content

[0004] To address the current problem that precision parts of coal mining machinery are too high to be easily cleaned, and are prone to rust and damage after cleaning, this utility model provides a cleaning device for mining machinery.

[0005] The embodiments of this utility model are implemented as follows:

[0006] A cleaning device for mining machinery includes a frame with rollers, a central processing unit installed inside the frame and a dry ice cleaning machine electrically connected to the central processing unit, the dry ice cleaning machine including a cleaning pipe and a dry ice spray gun connected in sequence, the frame having a lifting housing, a transverse frame that can be raised and lowered along the direction of gravity slidably on the lifting housing, and a cleaning seat for fixing the dry ice spray gun slidably on the transverse frame along the head and tail direction of the frame.

[0007] This cleaning device uses a dry ice cleaner to clean the precision parts of coal mining equipment. A lifting housing was added to accommodate the relatively large size of the equipment, along with a longitudinally lifting horizontal frame and a sliding cleaning seat. Combined with a wheeled chassis, it enables multi-angle cleaning, eliminating the need for personnel to climb up and down. It cleans the precision parts without disassembling the equipment, reducing damage and rust caused by water-based cleaning, and achieving high-quality cleaning of the mining equipment.

[0008] In some technical solutions of this utility model, a linear motor electrically connected to the central processing unit is installed on the aforementioned transverse frame, and the cleaning seat is installed on the moving part of the linear motor.

[0009] Linear motors can achieve precise position control, making them suitable for applications requiring high motion accuracy. They also feature rapid response, making them ideal for applications requiring high-speed motion and frequent starts and stops.

[0010] In some technical solutions of this utility model, an angle adjustment mechanism is provided between the linear motor and the cleaning seat. The angle adjustment mechanism includes a positioning frame provided on the moving part of the linear motor. The positioning frame is hinged to a swing block. The cleaning seat is located on the upper side of the swing block near the free end. The axis of the dry ice spray gun is parallel to the axis of the swing block. A first digital hydraulic cylinder electrically connected to the central processing unit is obliquely arranged between the positioning frame and the swing block.

[0011] This design allows the dry ice spray gun to be more flexible during the cleaning process, enabling it to complete cleaning tasks more effectively.

[0012] In some technical solutions of this utility model, the swing block is provided with a buffer groove on the side near the first digital hydraulic cylinder, and a buffer pad is provided in the buffer groove.

[0013] The buffer groove can, to some extent, avoid the first digital hydraulic cylinder and increase the swing angle range of the first digital hydraulic cylinder; the buffer pad is to prevent the corners of the first digital hydraulic cylinder from damaging the swing block during installation.

[0014] In some technical solutions of this utility model, the positioning frame is connected to an observation frame, and the observation frame is equipped with a camera that is electrically connected to the central processing unit.

[0015] By receiving images from the camera, the central processing unit can better understand the area that needs to be cleaned, and also know the specific dynamics of the dry ice spray gun on the cleaning station, so as to better plan the cleaning path.

[0016] In some technical solutions of this utility model, the upper side of the positioning frame is provided with an arc groove for limiting the cleaning tube.

[0017] The arc groove design can reduce the likelihood of the cleaning tube slipping out of the positioning frame during the oscillation process.

[0018] In some technical solutions of this utility model, the frame is equipped with a drive motor electrically connected to the central processing unit. The drive motor is connected to a ball screw rotatably disposed in the lifting housing. The ball screw is fitted with a lifting nut that cooperates with its lifting. The transverse frame is connected to the lifting nut.

[0019] In this design, the preload design of the ball screw can eliminate backlash (backlash error), ensuring positioning accuracy and repeatability.

[0020] In some technical solutions of this utility model, the lifting housing is provided with a second digital hydraulic cylinder electrically connected to the central processing unit, and the transverse frame passes through the lifting housing and is connected to the telescopic end of the second digital hydraulic cylinder.

[0021] In this design, the digital hydraulic cylinder is suitable for environments with high dust levels, as it has high resistance to pollution. Combined with the design of the lifting housing, it can provide a certain degree of protection.

[0022] In some technical solutions of this utility model, the above-mentioned vehicle frame is provided with a storage rack, the storage rack is rotatably provided with a storage shaft for organizing the cleaning tube, the storage rack is provided with a storage motor electrically connected to the central processing unit, and the storage motor is connected to the storage shaft.

[0023] This design avoids the cleaning tube from accumulating and tangling, thus reducing damage to the cleaning tube caused by tangling and knotting during the up-and-down movement of the dry ice spray gun.

[0024] In some technical solutions of this utility model, the cleaning seat is provided with a limiting hole, the handle of the dry ice spray gun passes through the limiting hole, the cleaning seat includes a limiting base with a first positioning groove that is slidably disposed on the horizontal frame, the limiting base is detachably connected to a limiting cover plate with a second positioning groove, the first positioning groove and the second positioning groove can be engaged to form a limiting hole, and silicone pads are provided on the inner sides of both the first positioning groove and the second positioning groove.

[0025] In this design, the silicone pad can reduce the dimensional accuracy requirements of the first and second positioning slots, and its elasticity can also increase the area covered by the dry ice spray gun handle, thus increasing the tightness of the dry ice spray gun installation.

[0026] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0027] This cleaning device has rollers on the frame, a central processor and a dry ice cleaner on the upper side of the frame, a transverse frame that slides on the lifting housing, and a cleaning seat on the transverse frame that can slide along the front and rear of the trolley to pull the dry ice spray gun of the dry ice cleaner. This allows it to clean mining machinery that is generally large in size. Compared with existing mining cleaning devices, it is more convenient, eliminates the need for climbing, and avoids water-induced damage problems such as rust caused by cleaning. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is one of the structural schematic diagrams of a cleaning device for mining machinery in one embodiment of this utility model;

[0030] Figure 2 This is a second schematic diagram of a cleaning device for mining machinery in another embodiment of the present utility model;

[0031] Figure 3 This is a partial structural schematic diagram of a cleaning device for mining machinery in another embodiment of the present utility model;

[0032] Figure 4 This is a schematic diagram of the structure of a positioning frame in a cleaning device for mining machinery in another embodiment of the present utility model;

[0033] Figure 5 This is a schematic diagram of the cleaning seat in a cleaning device for mining machinery, according to another embodiment of this utility model.

[0034] Icons: 1-Frame, 2-Roller, 3-Central Processing Unit, 4-Dry Ice Cleaner, 5-Cleaning Pipe, 6-Dry Ice Spray Gun, 7-Lifting Housing, 8-Horizontal Frame, 9-Cleaning Seat, 10-Linear Motor, 11-Angle Adjustment Mechanism, 12-Positioning Frame, 13-Swing Block, 14-First Digital Hydraulic Cylinder, 15-Buffer Groove, 16-Buffer Pad, 17-Observation Frame, 18-Camera, 19-Arc Groove, 20-Drive Motor, 21-Ball Screw, 22-Lifting Nut, 23-Second Digital Hydraulic Cylinder, 24-Storage Rack, 25-Storage Shaft, 26-Storage Motor, 27-Limit Hole, 28-Limit Base, 29-First Positioning Groove, 30-Limit Cover Plate, 31-Second Positioning Groove, 32-Silicone Pad. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the various embodiments and features described below can be combined with each other.

[0040] Example:

[0041] Please refer to Figures 1-5 A cleaning device for mining machinery includes a frame 1 with rollers 2, a central processing unit 3 and a dry ice cleaner 4 electrically connected to the central processing unit 3 are installed in the frame 1, the dry ice cleaner 4 includes a cleaning pipe 5 and a dry ice spray gun 6 connected in sequence, the frame 1 is provided with a lifting housing 7, the lifting housing 7 is slidably provided with a transverse frame 8 that can be raised and lowered along the direction of gravity, and a cleaning seat 9 for fixing the dry ice spray gun 6 is slidably provided on the transverse frame 8 along the head and tail direction of the frame 1.

[0042] The principle of this cleaning device: The Central Processing Unit (CPU) is the core of the computer system's operation and control, and is the final execution unit for information processing and program execution; the dry ice cleaner 4 is an industrial device that uses solid carbon dioxide (dry ice) particles for efficient cleaning. The dry ice cleaner 4 uses high-pressure airflow to accelerate and spray dry ice particles onto the surface to be cleaned, achieving cleaning through thermal shock effect, kinetic energy impact effect, and sublimation expansion; the rollers 2 are selected as universal wheels with a self-locking mechanism; personnel can replace the frame 1 with rollers 2 with a trolley with a drive mechanism, which can be a vehicle with a driver's cab, depending on the actual situation; when the coal mine machinery has parts with precision instruments... When cleaning is required, first push the carriage 1 to the designated cleaning position. When the nozzle of the dry ice spray gun 6 approaches the cleaning position, the carriage stops moving and becomes stationary. The transverse frame 8 moves upward to the lowest position to be cleaned, and the cleaning seat 9 also begins to slide to the designated cleaning position. The central processing unit 3 controls the dry ice cleaner 4 to start working. While the dry ice cleaner 4 starts working, the transverse frame 8 and the cleaning seat 9 can start simultaneously or slide independently, thereby moving the dry ice spray gun 6 to complete the cleaning of the position. During this process, personnel can also change the position of the carriage 1 to help expand the cleaning area. It should be noted that when using this cleaning device, operators or staff within a certain range need to wear appropriate protective masks and protective clothing.

[0043] This cleaning device uses a dry ice cleaning machine 4 to clean the precision parts of coal mining equipment. A lifting housing 7 is added to accommodate the relatively large size of the equipment, along with a longitudinally lifting horizontal frame 8 and a sliding cleaning seat 9. Combined with a frame 1 equipped with rollers 2, it achieves multi-directional cleaning, eliminating the need for personnel to climb up and down. It cleans the precision parts without disassembling the equipment, reducing damage and rust caused by water cleaning, ensuring personnel safety, and completing the high-quality cleaning of the mining equipment.

[0044] In a preferred embodiment, a linear motor 10 electrically connected to the central processing unit 3 is mounted on the transverse frame 8, and the cleaning seat 9 is mounted on the mover seat of the linear motor 10.

[0045] In the above embodiments, the linear motor 10 is a transmission device that directly converts electrical energy into linear motion mechanical energy; when the cleaning process requires sliding, the central processing unit 3 controls the linear motor 10 to start; the linear motor 10 can achieve precise position control, is suitable for application scenarios with high motion accuracy requirements, has the characteristics of fast response, and is suitable for application scenarios that require high-speed motion and frequent start and stop.

[0046] In a preferred embodiment, an angle adjustment mechanism 11 is provided between the linear motor 10 and the cleaning seat 9. The angle adjustment mechanism 11 includes a positioning frame 12 provided on the mover seat of the linear motor 10. The positioning frame 12 is hinged to a swing block 13. The cleaning seat 9 is located on the upper side of the swing block 13 near the free end. The axis of the dry ice spray gun 6 is parallel to the axis of the swing block 13. A first digital hydraulic cylinder 14 electrically connected to the central processing unit 3 is obliquely arranged between the positioning frame 12 and the swing block 13.

[0047] In the above embodiments, the digital hydraulic cylinder integrates a stepper or servo motor, a hydraulic slide valve, and a closed-loop position feedback design within the cylinder. After the hydraulic oil source is connected, length vector control at different speeds is achieved through digital pulse signals emitted by the digital hydraulic cylinder controller or a computer / programmable logic controller (PLC). Its motion characteristics are completely digitized; that is, the frequency of the electrical pulses corresponds to the cylinder's movement speed, and the number of electrical pulses corresponds to the cylinder's stroke. This correspondence is determined through the internal design and manufacturing process of the digital cylinder, without the need for any external sensors, regulators, or adjustment parameters. When the angle of the dry ice spray gun 6 needs to be adjusted, the central processing unit 3 controls the extension and retraction of the first digital liquid cylinder, causing the swing block 13 to swing, thereby completing the swing of the cleaning seat 9 and realizing the angle change of the dry ice spray gun 6. This design allows the dry ice spray gun 6 to be more flexible during the cleaning process and to better complete the cleaning task.

[0048] In a preferred embodiment, the swing block 13 is provided with a buffer groove 15 on the side near the first digital hydraulic cylinder 14, and a buffer pad 16 is provided in the buffer groove 15.

[0049] In the above embodiments, the buffer groove 15 can avoid the first digital hydraulic cylinder to a certain extent and increase the swing angle range of the first digital hydraulic cylinder 14; the buffer pad 16 is to prevent the corners of the first digital hydraulic cylinder 14 from damaging the swing block 13 during the installation process.

[0050] In a preferred embodiment, the positioning frame 12 is connected to an observation frame 17, and the observation frame 17 is equipped with a camera 18 that is electrically connected to the central processing unit 3.

[0051] In the above embodiment, the camera 18 mainly consists of a lens, an image sensor, a digital signal processor (DSP), and an interface. The camera 18 is preferably a camera that can rotate 360 ​​degrees. By receiving the images transmitted by the camera 18, the central processing unit 3 can better understand the area to be cleaned and also know the specific dynamics of the dry ice spray gun 6 located on the cleaning seat 9, so as to better plan the cleaning path. The specific height of the observation frame 17 can be adaptively adjusted according to the actual situation.

[0052] As a preferred embodiment, the upper side of the positioning frame 12 is provided with an arc groove 19 for limiting the cleaning tube (5).

[0053] In the above embodiment, the arc groove 19 can reduce the possibility of the cleaning tube 5 slipping out of the positioning frame 12 during the swing process; in addition, a binding strap can be fitted on the swing block 13, and the two ends of the binding strap are connected by Velcro; Velcro, also known as hook and loop fastener or snap fastener, is a fastener composed of a hook side and a rough side; this design can reduce the possibility of the cleaning tube slipping out of the swing block 13 due to excessive swing amplitude during the swing process.

[0054] In a preferred embodiment, the frame 1 is equipped with a drive motor 20 that is electrically connected to the central processing unit 3. The drive motor 20 is connected to a ball screw 21 that is rotatably disposed in the lifting housing 7. The ball screw 21 is fitted with a lifting nut 22 that is engaged with its lifting. The transverse frame is connected to the lifting nut 22.

[0055] In the above embodiment, the lifting housing 7 has a sliding groove, and the transverse frame 8 is welded with a connector. The connector passes through the sliding groove and connects to the lifting nut 22. The drive motor 20 is a servo motor, which can control the start and stop more precisely. When the transverse frame 8 needs to be raised or lowered, the drive motor 20 rotates, driving the ball screw 21 to rotate, thereby realizing the up and down movement of the lifting nut 22. The transverse frame 8 and the connector can be integrally formed, and can be connected to the lifting nut 22 by welding or bolts. In this design, the preload design of the ball screw 21 can eliminate backlash (return error) and ensure positioning accuracy and repeatability.

[0056] In a preferred embodiment, the lifting housing 7 is provided with a second digital hydraulic cylinder 23 that is electrically connected to the central processing unit 3, and the transverse frame 8 passes through the lifting housing 7 and is connected to the telescopic end of the second digital hydraulic cylinder 23.

[0057] In the above embodiment, the lifting housing 7 is provided with a sliding groove, and the transverse frame 8 includes a positioning block. The positioning block passes through the sliding groove and is connected to the telescopic end of the second digital hydraulic cylinder 23. The connection method can be welding. When lateral lifting is required, the central processing unit 3 drives the second digital hydraulic cylinder 23 to extend and retract up and down. In this design, the digital hydraulic cylinder is suitable for environments with high dust levels and has high pollution resistance. At the same time, the design of the lifting housing 7 can play a certain protective role.

[0058] In a preferred embodiment, the frame 1 is provided with a storage rack 24, the storage rack 24 is rotatably provided with a storage shaft 25 for organizing the cleaning tube 5, the storage rack 24 is provided with a storage motor 26 electrically connected to the central processing unit 3, and the storage motor 26 is connected to the storage shaft 25.

[0059] In the above embodiment, when the horizontal frame 8 moves upward, the storage motor 26 drives the storage shaft 25 to rotate, and the cleaning tube 5 is gradually released to meet the upward movement requirements of the dry ice spray gun 6; when the horizontal frame 8 moves downward, the storage motor 26 drives the storage shaft 25 to rotate in the opposite direction, and the cleaning tube 5 is gradually tightened; this design can avoid the cleaning tube 5 from accumulating and tangling, thereby reducing the damage to the cleaning tube caused by tangling and knotting during the up and down movement of the dry ice spray gun 6.

[0060] In a preferred embodiment, the cleaning seat 9 is provided with a limiting hole 27, and the handle of the dry ice spray gun 6 passes through the limiting hole 27. The cleaning seat 9 includes a limiting base 28 with a first positioning groove 29 that is slidably disposed on the transverse frame 8. The limiting base 28 is detachably connected to a limiting cover plate 30 with a second positioning groove 31. The first positioning groove 29 and the second positioning groove 31 can be engaged to form the limiting hole 27. Silicone pads 32 are provided on the inner sides of both the first positioning groove 29 and the second positioning groove 31.

[0061] In the above embodiment, the silicone pads 32 in the first positioning groove 29 and the second positioning groove 31 are fixed with glue; the limiting base 28 and the limiting cover plate 30 are positioned and connected by bolts; before the cleaning device needs to be cleaned, the dry ice spray gun 6 is fixed on the cleaning seat 9. The fixing method is to first open the limiting cover plate 30, place the handle of the dry ice spray gun 6 in the first positioning groove 29 of the limiting base 28, and then fasten the limiting cover plate 30 on the limiting base 28 to complete the fastening of the first positioning groove 29 and the second positioning groove 31. The handle of the dry ice spray gun 6 is located in the limiting hole 27. The limiting cover plate 30 and the limiting base 28 are fixed with bolts, and the installation of the dry ice spray gun 6 is completed. In this design, the setting of the silicone pad can reduce the dimensional accuracy requirements of the first positioning groove 29 and the second positioning groove 31, and can also use its elasticity to increase the area of ​​the dry ice spray gun 6 handle being wrapped, thereby increasing the tightness of the dry ice spray gun 6 installation.

[0062] In summary, the embodiments of this utility model provide a cleaning device for mining machinery. It is equipped with a frame 1 with rollers 2 and a lifting housing 7. A cleaning seat 9 is provided on a horizontal frame 8 that can slide up and down, which can slide along the head and tail direction of the frame 1 to pull and fix the dry ice spray gun 6 on the dry ice cleaning machine 4. It replaces the cleaning source water that causes rust and damage to precision instruments, and solves the safety hazards of personnel climbing up and down during the current cleaning process, saving labor costs, and thus making the cleaning of mining machinery safer and more efficient.

Claims

1. A cleaning device for mining machinery, comprising a frame (1) with rollers (2), a central processing unit (3) installed within the frame (1), and a dry ice cleaner (4) electrically connected to the central processing unit (3), the dry ice cleaner (4) comprising a cleaning pipe (5) and a dry ice spray gun (6) connected in sequence, characterized in that, The frame (1) is provided with a lifting housing (7), and the lifting housing (7) is slidably provided with a transverse frame (8) that can be raised and lowered along the direction of gravity. A cleaning seat (9) for fixing the dry ice spray gun (6) is slidably provided on the transverse frame (8) along the head and tail direction of the frame (1).

2. The cleaning device for mining machinery according to claim 1, characterized in that, A linear motor (10) electrically connected to the central processing unit (3) is installed on the transverse frame (8), and the cleaning seat (9) is installed on the moving part of the linear motor (10).

3. A cleaning device for mining machinery according to claim 2, characterized in that, An angle adjustment mechanism (11) is provided between the linear motor (10) and the cleaning seat (9). The angle adjustment mechanism (11) includes a positioning frame (12) provided on the moving part of the linear motor (10). The positioning frame (12) is hinged to a swing block (13). The cleaning seat (9) is located on the upper side of the swing block (13) near the free end. The axis of the dry ice spray gun (6) is parallel to the axis of the swing block (13). A first digital hydraulic cylinder (14) electrically connected to the central processing unit (3) is obliquely arranged between the positioning frame (12) and the swing block (13).

4. A cleaning device for mining machinery according to claim 3, characterized in that, The swing block (13) has a buffer groove (15) on the side near the first digital hydraulic cylinder (14), and a buffer pad (16) is provided in the buffer groove (15).

5. A cleaning device for mining machinery according to claim 3, characterized in that, The positioning frame (12) is connected to the observation frame (17), and the observation frame (17) is equipped with a camera (18) that is electrically connected to the central processing unit (3).

6. A cleaning device for mining machinery according to claim 3, characterized in that, The upper side of the positioning frame (12) is provided with an arc groove (19) for limiting the cleaning tube (5).

7. A cleaning device for mining machinery according to claim 1, characterized in that, The frame (1) is equipped with a drive motor (20) electrically connected to the central processor (3). The drive motor (20) is connected to a ball screw (21) rotatably disposed in the lifting housing (7). The ball screw (21) is fitted with a lifting nut (22) that cooperates with its lifting. The transverse frame (8) is connected to the lifting nut (22).

8. A cleaning device for mining machinery according to claim 1, characterized in that, The lifting housing (7) is equipped with a second digital hydraulic cylinder (23) that is electrically connected to the central processing unit (3), and the transverse frame (8) passes through the lifting housing (7) and is connected to the telescopic end of the second digital hydraulic cylinder (23).

9. A cleaning device for mining machinery according to claim 1, characterized in that, The frame (1) is provided with a storage rack (24), the storage rack (24) is rotatably provided with a storage shaft (25) for organizing the cleaning tube (5), the storage rack (24) is provided with a storage motor (26) electrically connected to the central processing unit (3), and the storage motor (26) is connected to the storage shaft (25).

10. A cleaning device for mining machinery according to claim 1, characterized in that, The cleaning seat (9) is provided with a limiting hole (27), and the handle of the dry ice spray gun (6) passes through the limiting hole (27). The cleaning seat (9) includes a limiting base (28) with a first positioning groove (29) that is slidably disposed on the horizontal frame (8). The limiting base (28) is detachably connected to a limiting cover plate (30) with a second positioning groove (31). The first positioning groove (29) and the second positioning groove (31) can be engaged to form the limiting hole (27). The inner sides of the first positioning groove (29) and the second positioning groove (31) are provided with silicone pads (32).

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